Moeitz honigmam



(No Model.) I.

M. HONIGMANN.

PRODUCTION OF'STEAM AT A HIGH PRESSURE FROM STEAM AT A LOWER PRESSURE.

No. 333,223. I Patented Dec. 29, 1885.

'N. PETERS. Phnlo-Lilhcgnpher. Wiuhlnglnn. D. C.

NITED STATES PATENT OFFICE.

MORITZ HONIGMANN, OF AlX-LA-CHAPELLE, GERMANY.

PRODUCTION OF STEAM AT A HlGH PRESSURE FROM STEAM AT A LOWER PRESSURE.

SPECIFICATION forming part of Letters Patent No. 333,223, dated December29, 1885.

Application filed July 17, 1885. Serial No. 171,836. (No model.)

To all whom it may concern:

Be it known that I, MORITZ HONIGMANN, of Aix-la-Chapelle, Germany, haveinvented new and useful Improvements in the Production of Steam at aHigh Pressure from Steam at a Much Lower Pressure, of which thefollowing is a specification.

This invention relates to the production of steam at ahigh pressure fromsteam at a much lower pressure. This is effected in the manner and bythe agency of the means hereinafter described.

- Reference is to be had to the accompanying drawing, which represents avertical section of an example of an apparatus suitable for the purpose.

A vessel, N, containing soda or potash lye or other solution having ahigh boiling-point and a vessel, W, provided with circulatingtubes S,are so arranged, the one within or in relation to the other that heatcan be quickly transferred from the one to the other, and thedifferences of temperature between the two liquids quickly equalized,the two vessels being respectively constructed to sustain the primitiveand increased pressures. Steam under pressure is conveyed by aperforated pipe, L, into the soda-lye, of which the temperature becomesin consequence quickly raised. If, :for instance, the boiling-point ofthe soda-lye (under atmospheric pressure) is 150 Celsius,and thetemperature of the original steam is 160 Celsius (which corresponds to apressure of five atmospheres).the temperature of the soda-lye will, inconsequence of the absorption ofthe steam, be raised to 160+50= 210Celsius, while the pressure in the sodavessel N is raised to fiveatmospheres. The temperature in the water-vessel W is consequentlyraised to about 210 Celsius,whereby steam will be generated and raisedto a pressure of from fifteen to twenty atmospheres. Thenceforth forevery quantity of steam under a pressure of five atmospheres which isblown into the soda-lye an equal quantity of steam under a pressure offifteen to twenty atmospheres may be obtained from the watervessel. Inconsequence of the absorptions of steam the boiling-point of thesoda-lye becomes gradually lowered and pressure in the watervesselbecomes correspondingly decreased, and when the solution is so fardiluted as to be no longer available, the soda-lye can be reconcentratedby means of the steam under pressure. This is effected in the followingway: The valves V and V are closed, and Viis opened to allow thepressurein the soda-vessel to escape to the atmosphere. Steam under apressure of five atmospheres, or at a temperature of 160 Celsius, isthen blown into the water-vessel WV, where it becomes absorbed, and thediluted soda-lye is evaporated as the temperatures become equalized. Thecon centration of the soda-lye continues until its boiling-pointcorresponds to the temperature of the steam used, which, in the example,is 160 Celsius.

For constant work two similar apparatus are used, which alternatelyraise the stean1- pressure and concentrate the lye. The increase ofsteam-pressure which can be obtained with this apparatus will be seenfrom the following table:

TABLE.

Steam under pressure. Raised pressure of the steam.

Pressure in at- Temperature Pressure in at- Temperature mospheres. inCelsius. I l

mospheres. in Celsius.

This apparatus can be used for various purposes. For steam-engines itallows of the use of smaller steam-pipes and smaller engines with agreater expansion.

This apparatus resembles the soda-steam boiler, but while in the latterthe exhaust from the engine is returned to the boiler, therebyconstituting a fireless working of the engine,

the present invention only aims to produce steam at a high underpressure.

It is to be observed that the working of this apparatus and theobtainingof the greatest pressure of steam are without any danger, asthe difference of the temperature between the soda and the water cannotexceed 4 Celsius. The boiler requires no cleaning, as the steam pressurefrom steam already which enters carries no lime with it. and potash arethe most suitable for the purposes of this process, as they have veryhigh boiling-points and are cheap and durable. Copper resists perfectlythe highest concentration of the soda-lye, and this metal being a goodconductor of heat is very suitable.

I claim 1. The improvement in the art of generating steam, consistingingenerating from water steam at a pressure above that of theatmosphere, causing such steam to pass directly to and be absorbed by analkaline lye or other solution having a high boiling-point, andemploying the heat produced by such absorption to generate from otherwater steam at apressure higher than that absorbed, substantially as herin described.

2. Thewithin-described improvement in the art of generating steam athigh pressure by means of heat obtained by the absorption 01: steam of alower pressure into solution of high boiling-point in a vessel separatefrom the vessel in which such generationis effected, said improvementconsisting in effecting the reconcentration of said solution byintroduc- Soda ing into the steam-generating vessel steam of a pressureand temperature corresponding with that of the steam originallyabsorbed,

substantially as herein described.

3. The within-described improvements in the art of generating steam at ahigh pressure by means of heat obtained by the absorption of steam of alower pressure into an alkaline solution in a yessel separate from thevessel in which such generation is efl'ected,and afterwardreconcentrating the solution byintroducing steam into thegenerating-vessel, said improvement consistingin the employment of twosimilar sets ot'heat absorbing and generating vessels in suchalternative manner that

